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ENZYME PRACTICE Name Ans K \ Date__ Per__ 1. Define the following terms in your own word. Be clear and concise! metabolism sum of all the chemical processes in an organism substrate the substance that an enzyme works One, feet 9 production OF ho guenes » DRA enzyme a chemical, usually a protein, that lowers the activation energy of a reaction without being consumed by the reaction. It might change shape during the reaction but returns back to what it was afterwards Enzymes are specific to particular substrates enzyme-substrate enzyme joined to substrate complex active site the place on the enzyme that actually binds with the substrate coenzyme A coenzyme is a substance that works with an enzyme to initiate_or aid the function of the enzyme. Coenzymes cannot function on their own and require the presence of an enzyme. metabolic pathway a series of chemical reactions within cells, mediated by enzymes activation energy the energy needed (endergonic) to initiate a chemical reaction 2. Label the diagram to the left a. _substrate__ b. _active site c. enzyme d. _products____ e, enzyme substrate complex . yh 7 Sétdest ep FHL eng ewan | 3. Answer true of false to the following statements: a.__t Enzymes interact with specific substrates b.__t__s—- Enzymes change shape after a reaction occurs c.__t __ Enzymes speed up reactions. Lo d._ Cf) One enzyme can be used for many different types of chemical reactions. .. Tiss, are “Spe crbie e t___ Enzyme reactions can be slowed or halted using inhibitors. 4, Circle the correct effect. a. Raising the temperature slightly will [ increase | decrease | not change ] the rate of reaction b. Boiling temperature will [ increase | decrease | not change ] the rate of reaction c. Changing the pH toward the optimal pH will [ increase | decrease | not change | the rate of reaction. d. Introducing a competitive inhibitor will [increase | decrease | not change ] the rate of reaction. Add a non competitive inhibitor Freezing go.35 Own , &x: patie 18, 5. Place a check mark next to the things that are expected to INCREASE the rate of an enzymatic reaction a.___x____s Add more enzyme bx Add more substrate c x Adjust pH to optimal level d e fea 5 ficret Bea fo preserve 2 
